What: Shares of healthcare information technologist Quality Systems (NXGN) were down 19.4% at 11:16 a.m. ET on Friday after its quarterly results disappointed Wall Street.

So what: Quality Systems shares have soared over the past six months on signs of accelerating top-line growth, but disappointing Q3 results -- revenue of $116.4 million versus the consensus of $125.5 million -- are forcing analysts to quickly recalibrate their growth estimates. So while earnings managed to squeak past expectations, the 25% drop in Quality Systems' software license/hardware revenue, coupled with a  gross margin decrease of 200 basis points raises plenty of concerns about its competitive position. 

Now what: Management remains confident that the company is on the right long-term strategic path. "As Quality Systems works to improve the quality of our client experience, our current growth strategy is centered on our transition to the cloud and the role our recent acquisition of HealthFusion plays, along with a strong focus on our core ambulatory business and pursuit of opportunities within the population health arena as the market shifts to the delivery of value-based care," said President and CEO Rusty Franz. "The foundation we have laid during the past few months well positions the Company for the direction in which the future of healthcare is headed." With the stock flirting with its 52-week lows and boasting a juicy 4% dividend yield, enterprising Fools might want to use today's decline to buy into that optimism.